To find all the divisors of the number 934,990:
- 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 934,990:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
934,990 = 2 × 5 × 7 × 192 × 37
934,990 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) × (1 + 1) × (1 + 1) × (2 + 1) × (1 + 1) = 2 × 2 × 2 × 3 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 934,990
- 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
prime factor =
7
composite factor = 2 × 5 =
10
composite factor = 2 × 7 =
14
prime factor =
19
composite factor = 5 × 7 =
35
prime factor =
37
composite factor = 2 × 19 =
38
composite factor = 2 × 5 × 7 =
70
composite factor = 2 × 37 =
74
composite factor = 5 × 19 =
95
composite factor = 7 × 19 =
133
composite factor = 5 × 37 =
185
composite factor = 2 × 5 × 19 =
190
composite factor = 7 × 37 =
259
composite factor = 2 × 7 × 19 =
266
composite factor = 19
2 =
361
composite factor = 2 × 5 × 37 =
370
composite factor = 2 × 7 × 37 =
518
composite factor = 5 × 7 × 19 =
665
composite factor = 19 × 37 =
703
composite factor = 2 × 19
2 =
722
This list continues below...
... This list continues from above
composite factor = 5 × 7 × 37 =
1,295
composite factor = 2 × 5 × 7 × 19 =
1,330
composite factor = 2 × 19 × 37 =
1,406
composite factor = 5 × 19
2 =
1,805
composite factor = 7 × 19
2 =
2,527
composite factor = 2 × 5 × 7 × 37 =
2,590
composite factor = 5 × 19 × 37 =
3,515
composite factor = 2 × 5 × 19
2 =
3,610
composite factor = 7 × 19 × 37 =
4,921
composite factor = 2 × 7 × 19
2 =
5,054
composite factor = 2 × 5 × 19 × 37 =
7,030
composite factor = 2 × 7 × 19 × 37 =
9,842
composite factor = 5 × 7 × 19
2 =
12,635
composite factor = 19
2 × 37 =
13,357
composite factor = 5 × 7 × 19 × 37 =
24,605
composite factor = 2 × 5 × 7 × 19
2 =
25,270
composite factor = 2 × 19
2 × 37 =
26,714
composite factor = 2 × 5 × 7 × 19 × 37 =
49,210
composite factor = 5 × 19
2 × 37 =
66,785
composite factor = 7 × 19
2 × 37 =
93,499
composite factor = 2 × 5 × 19
2 × 37 =
133,570
composite factor = 2 × 7 × 19
2 × 37 =
186,998
composite factor = 5 × 7 × 19
2 × 37 =
467,495
composite factor = 2 × 5 × 7 × 19
2 × 37 =
934,990
48 factors (divisors)
What times what is 934,990?
What number multiplied by what number equals 934,990?
All the combinations of any two natural numbers whose product equals 934,990.
1 × 934,990 = 934,990
2 × 467,495 = 934,990
5 × 186,998 = 934,990
7 × 133,570 = 934,990
10 × 93,499 = 934,990
14 × 66,785 = 934,990
19 × 49,210 = 934,990
35 × 26,714 = 934,990
37 × 25,270 = 934,990
38 × 24,605 = 934,990
70 × 13,357 = 934,990
74 × 12,635 = 934,990
95 × 9,842 = 934,990
133 × 7,030 = 934,990
185 × 5,054 = 934,990
190 × 4,921 = 934,990
259 × 3,610 = 934,990
266 × 3,515 = 934,990
361 × 2,590 = 934,990
370 × 2,527 = 934,990
518 × 1,805 = 934,990
665 × 1,406 = 934,990
703 × 1,330 = 934,990
722 × 1,295 = 934,990
24 unique multiplications The final answer:
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