To find all the divisors of the number 1,204,536:
- 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 1,204,536:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,204,536 = 23 × 3 × 31 × 1,619
1,204,536 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) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,204,536
- 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
3 × 3 =
24
prime factor =
31
composite factor = 2 × 31 =
62
composite factor = 3 × 31 =
93
composite factor = 2
2 × 31 =
124
composite factor = 2 × 3 × 31 =
186
composite factor = 2
3 × 31 =
248
composite factor = 2
2 × 3 × 31 =
372
composite factor = 2
3 × 3 × 31 =
744
This list continues below...
... This list continues from above
prime factor =
1,619
composite factor = 2 × 1,619 =
3,238
composite factor = 3 × 1,619 =
4,857
composite factor = 2
2 × 1,619 =
6,476
composite factor = 2 × 3 × 1,619 =
9,714
composite factor = 2
3 × 1,619 =
12,952
composite factor = 2
2 × 3 × 1,619 =
19,428
composite factor = 2
3 × 3 × 1,619 =
38,856
composite factor = 31 × 1,619 =
50,189
composite factor = 2 × 31 × 1,619 =
100,378
composite factor = 3 × 31 × 1,619 =
150,567
composite factor = 2
2 × 31 × 1,619 =
200,756
composite factor = 2 × 3 × 31 × 1,619 =
301,134
composite factor = 2
3 × 31 × 1,619 =
401,512
composite factor = 2
2 × 3 × 31 × 1,619 =
602,268
composite factor = 2
3 × 3 × 31 × 1,619 =
1,204,536
32 factors (divisors)
What times what is 1,204,536?
What number multiplied by what number equals 1,204,536?
All the combinations of any two natural numbers whose product equals 1,204,536.
1 × 1,204,536 = 1,204,536
2 × 602,268 = 1,204,536
3 × 401,512 = 1,204,536
4 × 301,134 = 1,204,536
6 × 200,756 = 1,204,536
8 × 150,567 = 1,204,536
12 × 100,378 = 1,204,536
24 × 50,189 = 1,204,536
31 × 38,856 = 1,204,536
62 × 19,428 = 1,204,536
93 × 12,952 = 1,204,536
124 × 9,714 = 1,204,536
186 × 6,476 = 1,204,536
248 × 4,857 = 1,204,536
372 × 3,238 = 1,204,536
744 × 1,619 = 1,204,536
16 unique multiplications The final answer:
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