To find all the divisors of the number 34,412,200:
- 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 34,412,200:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
34,412,200 = 23 × 52 × 73 × 2,357
34,412,200 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 = (3 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 4 × 3 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 34,412,200
- 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
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
2 × 5 =
20
composite factor = 5
2 =
25
composite factor = 2
3 × 5 =
40
composite factor = 2 × 5
2 =
50
prime factor =
73
composite factor = 2
2 × 5
2 =
100
composite factor = 2 × 73 =
146
composite factor = 2
3 × 5
2 =
200
composite factor = 2
2 × 73 =
292
composite factor = 5 × 73 =
365
composite factor = 2
3 × 73 =
584
composite factor = 2 × 5 × 73 =
730
composite factor = 2
2 × 5 × 73 =
1,460
composite factor = 5
2 × 73 =
1,825
prime factor =
2,357
composite factor = 2
3 × 5 × 73 =
2,920
composite factor = 2 × 5
2 × 73 =
3,650
composite factor = 2 × 2,357 =
4,714
This list continues below...
... This list continues from above
composite factor = 2
2 × 5
2 × 73 =
7,300
composite factor = 2
2 × 2,357 =
9,428
composite factor = 5 × 2,357 =
11,785
composite factor = 2
3 × 5
2 × 73 =
14,600
composite factor = 2
3 × 2,357 =
18,856
composite factor = 2 × 5 × 2,357 =
23,570
composite factor = 2
2 × 5 × 2,357 =
47,140
composite factor = 5
2 × 2,357 =
58,925
composite factor = 2
3 × 5 × 2,357 =
94,280
composite factor = 2 × 5
2 × 2,357 =
117,850
composite factor = 73 × 2,357 =
172,061
composite factor = 2
2 × 5
2 × 2,357 =
235,700
composite factor = 2 × 73 × 2,357 =
344,122
composite factor = 2
3 × 5
2 × 2,357 =
471,400
composite factor = 2
2 × 73 × 2,357 =
688,244
composite factor = 5 × 73 × 2,357 =
860,305
composite factor = 2
3 × 73 × 2,357 =
1,376,488
composite factor = 2 × 5 × 73 × 2,357 =
1,720,610
composite factor = 2
2 × 5 × 73 × 2,357 =
3,441,220
composite factor = 5
2 × 73 × 2,357 =
4,301,525
composite factor = 2
3 × 5 × 73 × 2,357 =
6,882,440
composite factor = 2 × 5
2 × 73 × 2,357 =
8,603,050
composite factor = 2
2 × 5
2 × 73 × 2,357 =
17,206,100
composite factor = 2
3 × 5
2 × 73 × 2,357 =
34,412,200
48 factors (divisors)
What times what is 34,412,200?
What number multiplied by what number equals 34,412,200?
All the combinations of any two natural numbers whose product equals 34,412,200.
1 × 34,412,200 = 34,412,200
2 × 17,206,100 = 34,412,200
4 × 8,603,050 = 34,412,200
5 × 6,882,440 = 34,412,200
8 × 4,301,525 = 34,412,200
10 × 3,441,220 = 34,412,200
20 × 1,720,610 = 34,412,200
25 × 1,376,488 = 34,412,200
40 × 860,305 = 34,412,200
50 × 688,244 = 34,412,200
73 × 471,400 = 34,412,200
100 × 344,122 = 34,412,200
146 × 235,700 = 34,412,200
200 × 172,061 = 34,412,200
292 × 117,850 = 34,412,200
365 × 94,280 = 34,412,200
584 × 58,925 = 34,412,200
730 × 47,140 = 34,412,200
1,460 × 23,570 = 34,412,200
1,825 × 18,856 = 34,412,200
2,357 × 14,600 = 34,412,200
2,920 × 11,785 = 34,412,200
3,650 × 9,428 = 34,412,200
4,714 × 7,300 = 34,412,200
24 unique multiplications The final answer:
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