To find all the divisors of the number 856,424,350:
- 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 856,424,350:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
856,424,350 = 2 × 52 × 53 × 293 × 1,103
856,424,350 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 = (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 856,424,350
- 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 =
5
composite factor = 2 × 5 =
10
composite factor = 5
2 =
25
composite factor = 2 × 5
2 =
50
prime factor =
53
composite factor = 2 × 53 =
106
composite factor = 5 × 53 =
265
prime factor =
293
composite factor = 2 × 5 × 53 =
530
composite factor = 2 × 293 =
586
prime factor =
1,103
composite factor = 5
2 × 53 =
1,325
composite factor = 5 × 293 =
1,465
composite factor = 2 × 1,103 =
2,206
composite factor = 2 × 5
2 × 53 =
2,650
composite factor = 2 × 5 × 293 =
2,930
composite factor = 5 × 1,103 =
5,515
composite factor = 5
2 × 293 =
7,325
composite factor = 2 × 5 × 1,103 =
11,030
composite factor = 2 × 5
2 × 293 =
14,650
composite factor = 53 × 293 =
15,529
composite factor = 5
2 × 1,103 =
27,575
This list continues below...
... This list continues from above
composite factor = 2 × 53 × 293 =
31,058
composite factor = 2 × 5
2 × 1,103 =
55,150
composite factor = 53 × 1,103 =
58,459
composite factor = 5 × 53 × 293 =
77,645
composite factor = 2 × 53 × 1,103 =
116,918
composite factor = 2 × 5 × 53 × 293 =
155,290
composite factor = 5 × 53 × 1,103 =
292,295
composite factor = 293 × 1,103 =
323,179
composite factor = 5
2 × 53 × 293 =
388,225
composite factor = 2 × 5 × 53 × 1,103 =
584,590
composite factor = 2 × 293 × 1,103 =
646,358
composite factor = 2 × 5
2 × 53 × 293 =
776,450
composite factor = 5
2 × 53 × 1,103 =
1,461,475
composite factor = 5 × 293 × 1,103 =
1,615,895
composite factor = 2 × 5
2 × 53 × 1,103 =
2,922,950
composite factor = 2 × 5 × 293 × 1,103 =
3,231,790
composite factor = 5
2 × 293 × 1,103 =
8,079,475
composite factor = 2 × 5
2 × 293 × 1,103 =
16,158,950
composite factor = 53 × 293 × 1,103 =
17,128,487
composite factor = 2 × 53 × 293 × 1,103 =
34,256,974
composite factor = 5 × 53 × 293 × 1,103 =
85,642,435
composite factor = 2 × 5 × 53 × 293 × 1,103 =
171,284,870
composite factor = 5
2 × 53 × 293 × 1,103 =
428,212,175
composite factor = 2 × 5
2 × 53 × 293 × 1,103 =
856,424,350
48 factors (divisors)
What times what is 856,424,350?
What number multiplied by what number equals 856,424,350?
All the combinations of any two natural numbers whose product equals 856,424,350.
1 × 856,424,350 = 856,424,350
2 × 428,212,175 = 856,424,350
5 × 171,284,870 = 856,424,350
10 × 85,642,435 = 856,424,350
25 × 34,256,974 = 856,424,350
50 × 17,128,487 = 856,424,350
53 × 16,158,950 = 856,424,350
106 × 8,079,475 = 856,424,350
265 × 3,231,790 = 856,424,350
293 × 2,922,950 = 856,424,350
530 × 1,615,895 = 856,424,350
586 × 1,461,475 = 856,424,350
1,103 × 776,450 = 856,424,350
1,325 × 646,358 = 856,424,350
1,465 × 584,590 = 856,424,350
2,206 × 388,225 = 856,424,350
2,650 × 323,179 = 856,424,350
2,930 × 292,295 = 856,424,350
5,515 × 155,290 = 856,424,350
7,325 × 116,918 = 856,424,350
11,030 × 77,645 = 856,424,350
14,650 × 58,459 = 856,424,350
15,529 × 55,150 = 856,424,350
27,575 × 31,058 = 856,424,350
24 unique multiplications The final answer:
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