To find all the divisors of the number 1,002,912:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 1,002,912:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,002,912 = 25 × 3 × 31 × 337
1,002,912 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (5 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 6 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,002,912
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2
4 =
16
composite factor = 2
3 × 3 =
24
prime factor =
31
composite factor = 2
5 =
32
composite factor = 2
4 × 3 =
48
composite factor = 2 × 31 =
62
composite factor = 3 × 31 =
93
composite factor = 2
5 × 3 =
96
composite factor = 2
2 × 31 =
124
composite factor = 2 × 3 × 31 =
186
composite factor = 2
3 × 31 =
248
prime factor =
337
composite factor = 2
2 × 3 × 31 =
372
composite factor = 2
4 × 31 =
496
composite factor = 2 × 337 =
674
composite factor = 2
3 × 3 × 31 =
744
composite factor = 2
5 × 31 =
992
This list continues below...
... This list continues from above
composite factor = 3 × 337 =
1,011
composite factor = 2
2 × 337 =
1,348
composite factor = 2
4 × 3 × 31 =
1,488
composite factor = 2 × 3 × 337 =
2,022
composite factor = 2
3 × 337 =
2,696
composite factor = 2
5 × 3 × 31 =
2,976
composite factor = 2
2 × 3 × 337 =
4,044
composite factor = 2
4 × 337 =
5,392
composite factor = 2
3 × 3 × 337 =
8,088
composite factor = 31 × 337 =
10,447
composite factor = 2
5 × 337 =
10,784
composite factor = 2
4 × 3 × 337 =
16,176
composite factor = 2 × 31 × 337 =
20,894
composite factor = 3 × 31 × 337 =
31,341
composite factor = 2
5 × 3 × 337 =
32,352
composite factor = 2
2 × 31 × 337 =
41,788
composite factor = 2 × 3 × 31 × 337 =
62,682
composite factor = 2
3 × 31 × 337 =
83,576
composite factor = 2
2 × 3 × 31 × 337 =
125,364
composite factor = 2
4 × 31 × 337 =
167,152
composite factor = 2
3 × 3 × 31 × 337 =
250,728
composite factor = 2
5 × 31 × 337 =
334,304
composite factor = 2
4 × 3 × 31 × 337 =
501,456
composite factor = 2
5 × 3 × 31 × 337 =
1,002,912
48 factors (divisors)
What times what is 1,002,912?
What number multiplied by what number equals 1,002,912?
All the combinations of any two natural numbers whose product equals 1,002,912.
1 × 1,002,912 = 1,002,912
2 × 501,456 = 1,002,912
3 × 334,304 = 1,002,912
4 × 250,728 = 1,002,912
6 × 167,152 = 1,002,912
8 × 125,364 = 1,002,912
12 × 83,576 = 1,002,912
16 × 62,682 = 1,002,912
24 × 41,788 = 1,002,912
31 × 32,352 = 1,002,912
32 × 31,341 = 1,002,912
48 × 20,894 = 1,002,912
62 × 16,176 = 1,002,912
93 × 10,784 = 1,002,912
96 × 10,447 = 1,002,912
124 × 8,088 = 1,002,912
186 × 5,392 = 1,002,912
248 × 4,044 = 1,002,912
337 × 2,976 = 1,002,912
372 × 2,696 = 1,002,912
496 × 2,022 = 1,002,912
674 × 1,488 = 1,002,912
744 × 1,348 = 1,002,912
992 × 1,011 = 1,002,912
24 unique multiplications The final answer:
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