Question

How to get the last digit of a big int in Go

Answer 1

package main

import (
	"fmt"
	"math/big"
)

func main() {
	// Example big integer
	num := big.NewInt(1234567890123456789)

	// Create a big.Int for modulus (10)
	mod := big.NewInt(10)

	// Create a big.Int to store the result
	lastDigit := new(big.Int)

	// Calculate the last digit: num % 10
	lastDigit.Mod(num, mod)

	fmt.Printf("The last digit of %s is: %s\n", num.String(), lastDigit.String())
}




/*
run:

The last digit of 1234567890123456789 is: 9

*/

 

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