Q: What are the prime factors of the number 616,200,420?

 A: 2, 3, 5, 11, 131, 7127

Why are those the prime factors of the number 616,200,420?

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 616,200,420

616,200,420
Factor Arrows
2308,100,210
Factor Arrows
2154,050,105
Factor Arrows
351,350,035
Factor Arrows
510,270,007
Factor Arrows
11933,637
Factor Arrows
1317,127

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, 11, 131, 7127

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 11 x 131 x 7,127 = 616,200,420

This can also be written as 22 x 31 x 51 x 111 x 1311 x 7,1271 = 616,200,420

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


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