2007-11-04 08:42:54 · 6 answers · asked by Tesia G 1 in Science & Mathematics ➔ Mathematics
5*17
2007-11-04 08:45:10 · answer #1 · answered by ssssh 5 · 1⤊ 0⤋
Prime Factorization Of 85
2016-09-29 00:58:55 · answer #2 · answered by weafer 4 · 0⤊ 0⤋
The best thing that would help you to answer this question is if you know your divisibility rules. (To learn these, go to http://mathforum.org/dr.math/faq/faq.divisibility.html. They are VERY helpful instead of having to do a zillion long division problems the way I was taught!) Obviously, because 85 ends in a 5, it is divisible by 5. If you do 85 divided by 5, you get 17 (which is a prime number, as is 5). Since both numbers are prime, the prime factorization would be 17X5. Do you know also how to do factorization 'trees'? This is a good way to visually see how a number factors out. A really good powerpoint that walks you through step by step can be found on www.tburg.k12.ny.us. Hope this helps!
2007-11-04 08:51:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋
17x5=85 Thus the prime factors of 85 are 5 and 17, since both 5 and 17 are prime numbers.
2007-11-04 09:06:31 · answer #4 · answered by Tracer8 1 · 1⤊ 0⤋
This Site Might Help You.
RE:
what is the prime factorization of 85?
2015-08-18 11:13:25 · answer #5 · answered by ? 1 · 0⤊ 0⤋
17*5.
Since 85 ends in 5 it is divisible by 5.
17 is not divisible by any prime less than its
square root, namely 2 and 3, so it is prime.
2007-11-04 08:46:28 · answer #6 · answered by steiner1745 7 · 2⤊ 0⤋
Any number ending in 5 is divisible by 5. Enough said?
2007-11-04 08:46:39 · answer #7 · answered by ironduke8159 7 · 0⤊ 0⤋
5x17
2007-11-04 08:45:40 · answer #8 · answered by Anonymous · 1⤊ 0⤋