diff --git a/config/config.go b/config/config.go
index e186028..b9fc91e 100644
--- a/config/config.go
+++ b/config/config.go
@@ -28,6 +28,12 @@ func DefaultConfig() *Config {
 		},
 		IgnoredFunctions: []*regexp.Regexp{
 			regexp.MustCompile(`time.Date`),
+			regexp.MustCompile(`strconv.FormatInt`),
+			regexp.MustCompile(`strconv.FormatUint`),
+			regexp.MustCompile(`strconv.FormatFloat`),
+			regexp.MustCompile(`strconv.ParseInt`),
+			regexp.MustCompile(`strconv.ParseUint`),
+			regexp.MustCompile(`strconv.ParseFloat`),
 		},
 	}
 }
diff --git a/testdata/src/argument/argument.go b/testdata/src/argument/argument.go
index 8b86ff4..518b410 100644
--- a/testdata/src/argument/argument.go
+++ b/testdata/src/argument/argument.go
@@ -5,6 +5,7 @@ import (
 	"math"
 	"net/http"
 	"os"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -92,3 +93,15 @@ func foobaz(numbers ...int) {}
 func example12() {
 	foobaz(0, 1, 3, 5, 6) // want "Magic number: 3" "Magic number: 5" "Magic number: 6"
 }
+
+func example13() {
+	strconv.FormatInt(10, 32)
+	strconv.FormatUint(5, 32)
+	strconv.FormatFloat(5.0, 'E', -1, 32)
+}
+
+func example14() {
+	_, _ = strconv.ParseInt("10", 10, 64)
+	_, _ = strconv.ParseUint("5", 10, 64)
+	_, _ = strconv.ParseFloat("5.0", 32)
+}