Q: What are the prime factors of the number 626,280?

 A: 2, 3, 5, 17, 307

Why are those the prime factors of the number 626,280?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 626,280

626,280
Factor Arrows
2313,140
Factor Arrows
2156,570
Factor Arrows
278,285
Factor Arrows
326,095
Factor Arrows
55,219
Factor Arrows
17307

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 17, 307

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 17 x 307 = 626,280

This can also be written as 23 x 31 x 51 x 171 x 3071 = 626,280

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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