i need to know which of these dates are leap years
2006-11-20 06:26:59 · 8 answers · asked by lisa jayne 1 in Science & Mathematics ➔ Mathematics
A leap year is a multiple of 4 that is not a century year, with the exception that multiples of 400 are leap years.
2006-11-20 06:29:25 · answer #1 · answered by Anonymous · 1⤊ 0⤋
The Gregorian calendar which we use has a special exception for leap years that would occur on a century.
In general, years that are divisible by 4 are leap years, unless they are centuries.
However, if they *are* centuries, then they are leap years *only* if they are divisible by 400.
The following are leap years:
2048 (divisible by 4)
2400 (century divisible by 400)
The following are *not* leap years:
2010 (not divisible by 4)
2100 (century, not divisible by 400)
2200 (century, not divisible by 400)
On the Julian calendar, any year divisible by 4 was a leap year. This would be great if the solar year (mean time for the earth to revolve once around the sun) was exactly 365.25 days. But the year is closer to 365.2422 days. On the Julian calendar, it mean that leap years were causing the calendar year to gradually get out of synch with the solar year.
To correct this, the Gregorian calendar removed a few leap years. 3 out of every 4 centuries are *not* leap years. Only if the century is 2000, 2400, 2800, etc. do we celebrate a leap year. This correction is still not exact and will lead to inaccuracies after about 10,000 years. By that time who knows whether the gradually slowing of the Earth will change the year and how we should change the leap years... I'm not worrying about it... :-)
2006-11-20 06:39:43 · answer #2 · answered by Puzzling 7 · 2⤊ 0⤋
2010 is not a leap year because 2010 is not divisible by 4.
2048 is a leap year because 2048 is divisible by 4.
2100 and 2200 are not leap years because year
numbers ending in 00 are not leap years unless
the number is divisible by 400. Thus, 2400 is a leap
year(as was 2000).
2006-11-20 07:42:18 · answer #3 · answered by steiner1745 7 · 0⤊ 0⤋
All but 2010 are leap years.
2006-11-20 09:11:17 · answer #4 · answered by CSUFGrad2006 5 · 0⤊ 0⤋
a leap year occurs every four years therefore the number has to be divisible by four so 2048, 2100, 2200, and 2400 are leap years
2006-11-20 06:31:34 · answer #5 · answered by Anonymous · 2⤊ 3⤋
2010, 2100 and 2200 aren't. The others are leap years
2006-11-20 06:30:34 · answer #6 · answered by Ferts 3 · 2⤊ 2⤋
divisble by 4 but not by 100 unless divisible by 400 are leap years.
so :
no,yes,no,no,yes
2006-11-20 06:44:57 · answer #7 · answered by gjmb1960 7 · 0⤊ 1⤋
If it is divisible by 4 it is a leap year.
2006-11-20 06:29:07 · answer #8 · answered by lisa h 4 · 0⤊ 5⤋