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Suppose you have a number N and you want to find its largest prime factor. It is probably easiest to start at the bottom.
- Find the smallest prime factor, p.
- Find its factor pair = N/p.
- If the second number (= N/p) is a prime, then it is the largest prime factor.
- if not, replace N by N/p and go back to the top.
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How do you find the largest prime factor of 100?
Find them all. Pick the largest one. 2 x 2 x 5 x 5 = 100 The largest prime factor of 100 is 5.
Is 3 a prime factor?
3 could be a prime factor but it depends on which number you're trying to find the prime factors of.
Who was the mathematician who discovered the largest prime number that exists?
It has been proven that there is no largest prime number. You can find a list of the largest KNOWN prime numbers here: http://en.wikipedia.org/wiki/Largest_known_prime_number
How do you find the factor for 73?
73 is a prime number. A prime number has only two factors, one and the number itself.
How can making a factor tree help you find the prime factorization of a number?
If completed correctly, the bottom branch of a factor tree will be the prime factorization of the number at the top.
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