Q: What are the prime factors of the number 312,220,300?

 A: 2, 5, 7, 17, 26237

Why are those the prime factors of the number 312,220,300?

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 312,220,300

312,220,300
Factor Arrows
2156,110,150
Factor Arrows
278,055,075
Factor Arrows
515,611,015
Factor Arrows
53,122,203
Factor Arrows
7446,029
Factor Arrows
1726,237

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, 5, 7, 17, 26237

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 7 x 17 x 26,237 = 312,220,300

This can also be written as 22 x 52 x 71 x 171 x 26,2371 = 312,220,300

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


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